Coke-oven.



M. E. ROTHBERG.

00KB OVEN.

APPLICATION FILED JAN. 13. 1908.

4 SHEETSSHEET 1.

PATENTED JULY 14, 1908. M. B. ROTHBERG.

' 00KB OVEN.

APPLICATION FILED JAIL 13, 1908.

4 SHEETS-SHEET 2.

M gnvqzfifoz 36 1 Gttoznc a witnesses M. B. ROTHBBRG.

COKE OVEN APPLIGATION FILED JAN.13. 1908:

dimeaoeo 11M GHMM 1 UNITED STATES FATE, a:

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MATHEW E. ROTHBERG, OF PITTSBURG, PENNSYLVANIA, ASSIGNOR TO THE OOALAND COKE BY-PRODUCTS COMPANY, A CORPORATION OF WEST VIRGINIA.

COKE-OVEN.

Specification of Lette'rs Patent.

Patented July 14, 1908.

Application filed January 13, 1908. Serial No. 410,477.

fication, accompanied by illustrative drawfines and giare a more uniform heat to the in s. a

Fhe invention relates particularly to the flues by'whlch the ovens are heated, and its ob ect is to improve the combustion in the 'OVGII.

The invention is particularly applicable as an improvement 'of the ovens shown in United States Letters Patent No. 841,052, of January 8th, 1907, to Rothberg and Ernst, but it is by no means restricted to such application, as will be evident.

The accompanying drawings illustrate the invention in its preferred form only.

Figure .1 is a vertical section through an oven wall on the section line 11 of Fig. 5. Fig. 2 is a partial cross section on the line 22 of Fig. 1. Figs. 3 and 4 are similar sections on the lines 33 and 44. Fig. 5 is a partial horizontal. section on the line 55 (Fig. 1): Fig. 6 is a-similar section on the line 66 (Fig. 1). Fig. 7 is a partial longitudinal section through battery ovens on the line 77 of Fig. 8, partly diagrammatic and omitting some of the parts not directly eon-.

cerned. Fig. 8 is a horizontal section on the line 8-8 (Fig. 1). n i

In the preferred form of the invention illustrated, some of the coking chambers are marked 9 and the heating fines are arranged in the side walls in each of these chambers.

It will be understood that preferably the gas from the oven is carried ofi' through suitable pipes and some of it is utilized to roduce combustion and heat the ovens, he invention primarily concerns the manner in which the gas and-air are introduced and burned in the fines and the hot waste gas so roduced carried off. The hot waste gases rom the heating lines are carried down to the waste gas main 10. These gases are then drawn back through one of the regenerating chambers 11, highly heating the same, and thence to the stack '12. The other; regenerating chamber is used to heat the incoming fresh air which enters from the atmosphere site end of the oven, as shown.

into the passa es 13, through which it is drawn. by the b ower 14 which delivers it, as shown in Fig. 8, through one of-the regenerating chambers 11 and thence by the passages 15 to the two hot air mains 16, from which it is distributed to the heatingflues. Dampers 17, 18, 19, and 20, as seen in Fig. 8, are used to deflect the hot gases and the air respectively through the two regenerating chambers, so as to utilize the heat of the gases in heating the incoming air. All this will be'well understood by those skilled in the art.

In accordance with my present improvements the combustion fines or heating flues in which the combustion takes place, are so arranged that very complete and uniform combustion occurs and a very even generation and distribution of heat throughout the side walls of each coking chamber occur. In the drawings, three reverted or U-shaped combustion flues 30 are arranged one above the otherin each side wall of each oven and extending from the open end of the oven for approximately half its length, the other half of the oven being similarly provided with combustion fiues extending in from the o po- Eac of these-reverted fines is provided with a se arate burner or gas inlet 35 and hot air in ets 40 and the waste roduc-ts produced in each are carried 03 to tii out passing or. interfering with the combustion occurring in the combustion fiues 30 that lie above or below it. This is accomplished as follows: Each of the combustion fiues 30 extends inwards and then downwards, being reverted and continuing outwards in the o e waste gas main 1'0 withposite direction toward the mouth of tie' oven. At its outer end 41 it turns and ex' tends, as shown in Fig. 6, away from the oven wall and from the end of the oven to the'verticalflue 42. This flue 42 is common to the three superposed flues 40 in the side wall of the oven and also to the three similar flues in the side wall of the adylacent oven, as shown. This vertical flue 42 eads the waste'.gases downwards and through the short-connection 43 to the horizontal flue 44 which exown air inlets 40 and gas inlet 35, and delivers its products of combustion to the waste gas main without passing the burner or air inlets of any of the other combustion flues or in any way interfering with the combustion therein. a

The gas is carried to the gas inlets 35 by a suitably located main 36 and branch ip es 37 leading downward, as at 38, to the three superposed burners or gas inlets 35 beside the mouth of each oven. The air inlets 40 are supplied from the hot air mains 16. An upta e 31 from the main 16 is provided at each end of each wall of each oven. At the level of each row of air inlets-40 the uptake 31 branches laterally, as at 32, and su lies a horizontal hot air flue 33 that leads dlrectly to the o enings or air inlets 40.

It will be seen that the mixing of gas from the inlets 35 and air from the-inlets 40 in each of the combustion flues, is independent of and is not interfered with by the waste products from any of the other combustion flues, and that each gas inlet and cooperating row of air inlets has its separate and individual combustion flue from which the waste produ cts are separately and independentlydrawn and furthermore, that the conditions occurring in the uppermost flues are duplicated in the lower combustion flues, thus producing very uniform generation and distribution of heat throughout the side walls of the ovens.

What I claim is:

.1. An oven having in its side wall a plurality of separate combustion flues which are arranged one above the other, a downtake flue with which the said flues separately and individually communicate, gas mlets for the said combustion flues, hot air flues for the same extending in the wall adjacent to the combustion flues and communications therefrom to the respective combustion flues.

2. An oven having combustion flues within its side wall extending horizontally one above another and a separate gas inlet for each, a hot air supply for each comprising a branching flue within the oven wall, there being one branch flue for each combustion flue extending adjacent thereto in the said wall, and a downtake passage or flue for the waste gases to which the said combustion flues severally lead, whereby the waste gases from one flue do not affect the combustion in the others, and the heated air is delivered to the combustion flues separately from the gas inlets.

3. In combination in an oven and in its side wall, a gas inlet, a combustion flue leading therefrom, a second gas inlet and combus tion flue beneath and parallel with the first, a waste gas'passage for both the said flues communicating separately with each, and hot air flues and connections within the said wall for admitting hot air to the combustion flues.

its

4. In combination with the oven, a lurality of combustion flues in its side wal arranged one above another, and a gas inlet, hot air inlets and waste gas outlet for each of the combustion flues inlets entering the combustion flues at a plurality of points separate from the said gas inlet.

5. In combination with the oven, a plurality of combustion flues in its side wall ar ranged one above another, and a gas inlet, hot air inlets and waste gas outlet for each of the combustion flues separately, a common hot air uptake branching within the said wall to supply the said flues, and a common downtake for the waste gases with which the outlets of the flues communicate.

6. In combination with the oven, a plurality of combustion flues in its side wall arranged one above another, and a gas inlet, and waste gas outlet for each of the combustion flues separately, and a waste gas downtake into which the said outlets deliver and a hot air passage within the said wall having branches extending to the respective combustion flues.

7. In combination in the side wall of an oven, two or more gas inlets one above. the other, a plurality of reverted combustion flues extending horizontally one from each. one of the said as inlets, a waste as flue extending vertica ly and with whici the said combustion flues severally communicate, and an air supply for the said flues includin branch hot air flues within the said wall an communicating with the combustion flues separately from the gas inlets.

8. In combination in the side wall of an oven, a plurality of heating flues one above another, two or more gas inlets therefor for separately, said hot air producing combustion at separate points,.

and a waste gas passage with which the flues from each gas inlet communicate individually and hot air flues within the said wall for the respective heating flues.

9. In combination in the side wall of an oven, a plurality of heating flues therein one above another, aiplurality of gas inlets from which the heating flues severally and individually lead, air mlets therefor, and a waste gas flue with which the said heating flues communicate, whereby the products of combustion of one flue do not mix with the incoming fresh air and gas of the adjacent flue for the urposes set forth said air inlets comprising iot air flues branching within the said wall and leading to the respective heating flues.

10. In combination in an oven and with wall, a hot air uptake flue within the said wall, a waste gas downtake flue within the said wall, a urality of gas inlets and of combustion ues leadin therefrom within the said wall and indivi uallycommunicating with the said downtake, and hot air branch flues from the said hot air uptake fiue communicating With tion flues.

11. In combination in 5 wall, a hot air uptake wall, a waste gas down said wall, a plurality of bustion fluesleading t said wall and individu 10 with the said downtake the said combusan oven and with its flue within the said take flue within the ias inlets and of comerefrom Within the ally communicating and hot air branch flues from the said hot air ulptake flue extending parallel with the com ustion flues and connected to supply hot air thereto.-

In testimony whereof I have signed this specification in the presence of two subscrib- 15 ing witnesses January 8th 1908., A

MATHEW E ROTHBERG.

Witnesses ALFRED ERNST, HUGH PRENTIOE. 

